Hoisting-bucket.



CUJACOBSON. Hoism BUCKET'.

APPLICATION FILED IULYI'4, 1914.

l a T9592@ Patented June 20, 19.16.

TTM @Na-'m arcanes, new Yoan.

Specication of Letters Patent.

Application led July 14, 191e. Serial No. Slt.

To all eli/wm 'it may concern:

Be it known that l, CARL JAooBsoN, a

citizen of the United States, residing at amburg", in the county of Erie and State of New York, have invented new and useful Improvements in Hoisting-Buckete, of which the following is a specification.

rlhis invention relates to the class of clamshell buckets employed more particularly for hoisting ore in loading and unloading railway Carsand vessels and comprising a pair of shells or scoops pivoted to suitable tackle which is constructed to draw them tightly together while hoisting and transferring the load. l

The object of my invention is to improve theconstruction of such buckets with a view of materially increasing their durabilityA ln the accompanying drawings: Figure l is a side elevation of a hoisting bucket eA bodying 'the invention. Fig. 2 is a perspective view of one of the bucket-shells. Fig.' 3 is. a similar view showing the bucket-bot toni adjusted for wear, preparatory to cutr ting away its projecting iront portions.

Fig. e is an enlarged horizontal section on line M, Fig, l, omitting; some of the rivets..

Similar characters of reference indicate corresponding parts throughout the several viewsq l indicates the scoops or shells of the` bucket which are pivotally attached to any suitable or well known hoisting tackle. This `tackle is not shown in'v thedrawings, as it Aterms no partei" my invention.

Each of the bucketshells comprises a pair of upright sidewalls 2 and a bottom or bottoni-plate 3 provided at its side edges with upturned flanges l which are secured to the side walls?v byy rivets 5 or other suitable 'las tenings. 'This bottom is preferably cast of manganesesteel, ,but may be constructed of any other suitable material. The shells are open at their rear as well as their front ends, 'and their front edges are reduced or sharpcned, as usual, to readily' out through the material in picking up a load, the sharp cned edges closing against each other to rctai-n the load in the bucket while transferring it, in a well known manner. I

The front edges oi' the shell-bottoms weer away rapidly, permitting leakage of the material between them, andwitli onepiece shells as ordinarily constructed, when such wear and leakage become 'excessive-i it is necessary to discard the entire bucket. To

ljectin enable such wear to be taken up and prolong the life of the bucket., I make the bottom longitudinally adjustable on the side walls of the shell and also make it reversible thereon end for end. For this purpose, as regards lthe longitudinal adjustment ofthe bottom,

.the rivet holes 6 and 7 formed respectively in the side walls and the bottom flanges 4 are spaced symmetrically, so that when the :front edge of the bottom becomes unduly worn, it may be shifted forward on the side- Walls the distance from one rivet hole to the next, es'shown in Fig. 3, this being done by cutting ofthe rivets,` shifting the bottom and then again riveting it to the side-wallsv After thus adjusting the bottom, the profront portions. 8 of its flanges are out oli Hush with the front edges of the side walls, to permit the front edges of the two shells to meet and close tightly', as before, this cut being indicated by the dotted line 8a. This adjustment of the bucketshell practically doubles its life. In the preferred con struction illustrated in the drawings, each bottom flange is secured to the contiguous sidewalll by two rows of rivets, and the rivet-holes in the side-walls are twice as Patented June 2li, 1h16.

being plain or uniianged, sd that either may y readily penetrate the mass if material to be hoisted. After the bottom has been adjusted longitudinally, as hereinbefore described, it

' may be reversed by cutting the rivets and reriveting it inreversed position to the sidewalls, both ends of the bottom being constructed to bear squarely against the end of the opposing scoop to form a closed joint between the scoops in both of the reversed positions of the bottom. versal, the bucket may be'again used for a considerable time; and when this new front edge becomes `.vorn'to an excessive depth, the reversed bottom may be again adjusted forwardly, as before, the bucket being serviceable for a considerable period after each ad-V justifient and reversal. I

Bytliis cnstructiom the durability ofthe bucket-shells is practically ioui" times that oi an ordinary shell in which the bottom and side walls are vintegral "and which must be Alfterv suoliA relil wholly renewed when the cutting edge of, the bottom bet/omes unduly Worn. Such buckets are comparatively large and the cost of their two shells is approximately Six limb dred dollars. It is manifest therefore that in quadrupling the life oi' the bucket, my invention eillects the important saving of about seventylive per cent, in the cost of this part of the hoisting and transferring equipinent.`

As shown, the bottoms of the shells may be provided in their corners with suitable fillets or reinforcements 9. The fiat upper edges of theseiillets are arranged closely to the straight loweredges of the side Walls 2. lin the preterred construction shown in the drawings, 'the bottoms of the shells slope *for- Wardly or toward each other, and the upper edges of said illets and the lower edges of the side walls are inclined and substantially parallel with said bottoms. This relative arrangement of the parts permits the bottoms to be reversed, as liereinbefore described, and to slope toward each other in either of their reversed positions.

l claim as my invention:

l. A clam-shell bucket having scoops, each comprising side walls, a separate bottom ,having upturned sideianges, and means for 'securing the bottonrtlenges to'vtlie side walls,

the bottom being reversible end for end on the side Walls and having synnnetrical front and rear edges both of which are unilanged to penetrate the mass of material to be hoistedl and constructed to bear squarely against the opposing end of the other scoop to forni a closed joint between the scoops in both of the reversed positions of the scoopbottoms.

ipievgeee 2f' A clam-shell'bucket having scoops, each comprising side Walls and a separate bottom having integral upturned side flanges, the bottoni being reversible end for end on the side Walls and having symmetrical front and rear edges both of which are nnlengedl and constructed to bear squarely against tl1eopposing end of the other scoop to 'orm a closed joint between the scoopsin both of the reversed positions of the scoop-bottoms, saidl s' e-Walls and bottom flanges having ,longitudinal rows of synnnetricallyspaced 4holes adapted to receive fastenings for securing the bottom in. diderent longitudinal adjustments on said Walls in both of its reversed positions.

3. A clam-shell bucket havingscoops7 each t slopes toward its front edge in either of its .reversed positions, both ends of the bottom -V being constructed to bear 'squarely against lthe opposing end of the other scoop to form closed joint between the scoops in both of the reversed positions of the scoop-bottoms. ltllitness my hand this 8th day oi July, 1914.

CARL JAooBsoN.

litnesses G. F. Guyon, ANNA Hnieis. 

